Fix issue 6450 Test LDAP server error without save configuration

Signed-off-by: stonezdj <stonezdj@gmail.com>

src/common/utils/ldap/ldap.go

@@ -43,19 +43,9 @@ type Session struct {
 	ldapConn        *goldap.Conn
 }
 
-// LoadSystemLdapConfig - load LDAP configure from adminserver
+// LoadSystemLdapConfig - load LDAP configure
 func LoadSystemLdapConfig() (*Session, error) {
 
-	authMode, err := config.AuthMode()
-	if err != nil {
-		log.Errorf("can't load auth mode from system, error: %v", err)
-		return nil, err
-	}
-
-	if authMode != "ldap_auth" {
-		return nil, fmt.Errorf("system auth_mode isn't ldap_auth, please check configuration")
-	}
-
 	ldapConf, err := config.LDAPConf()
 
 	if err != nil {
@@ -158,14 +148,8 @@ func ConnectionTestWithConfig(ldapConfig models.LdapConf) error {
 // ConnectionTestWithAllConfig - test ldap session connection, out of the scope of normal session create/close
 func ConnectionTestWithAllConfig(ldapConfig models.LdapConf, ldapGroupConfig models.LdapGroupConf) error {
 
-	authMode, err := config.AuthMode()
-	if err != nil {
-		log.Errorf("Connection test failed %v", err)
-		return err
-	}
-
 	// If no password present, use the system default password
-	if ldapConfig.LdapSearchPassword == "" && authMode == "ldap_auth" {
+	if ldapConfig.LdapSearchPassword == "" {
 
 		session, err := LoadSystemLdapConfig()
 

src/core/api/ldap.go

@@ -23,6 +23,9 @@ import (
 	"github.com/goharbor/harbor/src/core/auth"
 
 	"errors"
+	"strings"
+
+	"github.com/goharbor/harbor/src/core/config"
 	goldap "gopkg.in/ldap.v2"
 )
 
@@ -52,6 +55,19 @@ func (l *LdapAPI) Prepare() {
 		return
 	}
 
+	// check the auth_mode except ping
+	if strings.EqualFold(l.Ctx.Request.RequestURI, "/api/ldap/ping") {
+		return
+	}
+	authMode, err := config.AuthMode()
+	if err != nil {
+		l.SendInternalServerError(fmt.Errorf("Can't load system configuration, error: %v", err))
+		return
+	}
+	if authMode != "ldap_auth" {
+		l.SendInternalServerError(fmt.Errorf("Can't load system configuration, error: %v", err))
+		return
+	}
 	ldapCfg, err := ldapUtils.LoadSystemLdapConfig()
 	if err != nil {
 		l.SendInternalServerError(fmt.Errorf("Can't load system configuration, error: %v", err))

tests/apitests/python/test_ldap_ping.py

@@ -0,0 +1,40 @@
+# coding: utf-8
+
+"""
+    Harbor API
+    These APIs provide services for manipulating Harbor project.
+    OpenAPI spec version: 1.4.0
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+"""
+
+
+from __future__ import absolute_import
+
+import os
+import sys
+sys.path.append(os.environ["SWAGGER_CLIENT_PATH"])
+
+import unittest
+import testutils
+from swagger_client.models.ldap_conf import LdapConf
+from pprint import pprint
+
+#Testcase
+# Define a LDAP group with harbor admin
+class TestLdapPing(unittest.TestCase):
+    """AccessLog unit test stubs"""
+    product_api = testutils.GetProductApi("admin", "Harbor12345")
+    project_id = 0
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def testLdapPing(self):
+        """Test LdapAdminRole"""
+        result = self.product_api.ldap_ping_post(ldapconf=LdapConf(ldap_url="10.161.127.236", ldap_search_dn="cn=admin,dc=example,dc=com", ldap_search_password="admin", ldap_scope=2))
+        pprint(result)
+
+if __name__ == '__main__':
+    unittest.main()